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author | Takashi Iwai <tiwai@suse.de> | 2011-05-03 18:48:59 +0400 |
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committer | Takashi Iwai <tiwai@suse.de> | 2011-05-03 18:48:59 +0400 |
commit | fe3d393eda2a716c2ea7fcd63e105657911ed245 (patch) | |
tree | d21cb1c2a083a7233fdc3c77a7d79a772f39545b /sound/pci/lola | |
parent | 0f8f56c959c9c4a65a5ad13f1b49d97db30b5c2f (diff) | |
download | linux-fe3d393eda2a716c2ea7fcd63e105657911ed245.tar.xz |
ALSA: lola - Add Lola-specific module options
Added granularity and sample_rate_min module options.
The former controls the h/w access granularity. As default, it's set
to the max value 32.
The latter controls the minimum sample rate in Hz, as default 16000.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/lola')
-rw-r--r-- | sound/pci/lola/lola.c | 45 |
1 files changed, 35 insertions, 10 deletions
diff --git a/sound/pci/lola/lola.c b/sound/pci/lola/lola.c index 4d8221505b9e..7c13ace3c33b 100644 --- a/sound/pci/lola/lola.c +++ b/sound/pci/lola/lola.c @@ -32,6 +32,7 @@ #include <sound/initval.h> #include "lola.h" +/* Standard options */ static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; @@ -43,6 +44,28 @@ MODULE_PARM_DESC(id, "ID string for Digigram Lola driver."); module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "Enable Digigram Lola driver."); +/* Lola-specific options */ + +/* for instance use always max granularity which is compatible + * with all sample rates + */ +static int granularity[SNDRV_CARDS] = { + [0 ... (SNDRV_CARDS - 1)] = LOLA_GRANULARITY_MAX +}; + +/* below a sample_rate of 16kHz the analogue audio quality is NOT excellent */ +static int sample_rate_min[SNDRV_CARDS] = { + [0 ... (SNDRV_CARDS - 1) ] = 16000 +}; + +module_param_array(granularity, int, NULL, 0444); +MODULE_PARM_DESC(granularity, "Granularity value"); +module_param_array(sample_rate_min, int, NULL, 0444); +MODULE_PARM_DESC(sample_rate_min, "Minimal sample rate"); + +/* + */ + MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("{{Digigram, Lola}}"); MODULE_DESCRIPTION("Digigram Lola driver"); @@ -536,7 +559,7 @@ static int lola_dev_free(struct snd_device *device) } static int __devinit lola_create(struct snd_card *card, struct pci_dev *pci, - struct lola **rchip) + int dev, struct lola **rchip) { struct lola *chip; int err; @@ -564,14 +587,16 @@ static int __devinit lola_create(struct snd_card *card, struct pci_dev *pci, chip->pci = pci; chip->irq = -1; - /* below a sample_rate of 16kHz the analogue audio quality - * is NOT excellent - */ - chip->sample_rate_min = 16000; - /* for instance use always max granularity which is compatible - * with all sample rates - */ - chip->granularity = LOLA_GRANULARITY_MAX; + chip->sample_rate_min = sample_rate_min[dev]; + + chip->granularity = granularity[dev]; + /* FIXME */ + if (chip->granularity != LOLA_GRANULARITY_MAX) { + snd_printk(KERN_WARNING SFX + "Only %d granularity is supported for now\n", + LOLA_GRANULARITY_MAX); + chip->granularity = LOLA_GRANULARITY_MAX; + } err = pci_request_regions(pci, DRVNAME); if (err < 0) { @@ -674,7 +699,7 @@ static int __devinit lola_probe(struct pci_dev *pci, snd_card_set_dev(card, &pci->dev); - err = lola_create(card, pci, &chip); + err = lola_create(card, pci, dev, &chip); if (err < 0) goto out_free; card->private_data = chip; |